The Tor Browser: dom/alarm/AlarmsManager.js@6474c204b198 (annotated)

dom/alarm/AlarmsManager.js@6474c204b198 (annotated)

dom/alarm/AlarmsManager.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 /* static functions */
 const DEBUG = false;
 function debug(aStr) {
   if (DEBUG)
     dump("AlarmsManager: " + aStr + "\n");
 }
 const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/DOMRequestHelper.jsm");
 const ALARMSMANAGER_CONTRACTID = "@mozilla.org/alarmsManager;1";
 const ALARMSMANAGER_CID        = Components.ID("{fea1e884-9b05-11e1-9b64-87a7016c3860}");
 const nsIDOMMozAlarmsManager   = Ci.nsIDOMMozAlarmsManager;
 const nsIClassInfo             = Ci.nsIClassInfo;
 function AlarmsManager()
 {
   debug("Constructor");
 }
 AlarmsManager.prototype = {
   __proto__: DOMRequestIpcHelper.prototype,
   classID : ALARMSMANAGER_CID,
   QueryInterface : XPCOMUtils.generateQI([nsIDOMMozAlarmsManager,
                                           Ci.nsIDOMGlobalPropertyInitializer,
                                           Ci.nsISupportsWeakReference,
                                           Ci.nsIObserver]),
   classInfo : XPCOMUtils.generateCI({ classID: ALARMSMANAGER_CID,
                                       contractID: ALARMSMANAGER_CONTRACTID,
                                       classDescription: "AlarmsManager",
                                       interfaces: [nsIDOMMozAlarmsManager],
                                       flags: nsIClassInfo.DOM_OBJECT }),
   add: function add(aDate, aRespectTimezone, aData) {
     debug("add()");
     if (!this._manifestURL) {
       debug("Cannot add alarms for non-installed apps.");
       throw Components.results.NS_ERROR_FAILURE;
     }
     if (!aDate) {
       throw Components.results.NS_ERROR_INVALID_ARG;
     }
     let isIgnoreTimezone = true;
     switch (aRespectTimezone) {
       case "honorTimezone":
         isIgnoreTimezone = false;
         break;
       case "ignoreTimezone":
         isIgnoreTimezone = true;
         break;
       default:
         throw Components.results.NS_ERROR_INVALID_ARG;
         break;
     }
     // Run JSON.stringify() in the sand box with the principal of the calling
     // web page to ensure no cross-origin object is involved. A "Permission
     // Denied" error will be thrown in case of privilege violation.
     let sandbox = new Cu.Sandbox(this._window.document.nodePrincipal);
     sandbox.data = aData;
     let data = Cu.evalInSandbox("JSON.stringify(data)", sandbox);
     let request = this.createRequest();
     this._cpmm.sendAsyncMessage(
       "AlarmsManager:Add",
       { requestId: this.getRequestId(request),
         date: aDate,
         ignoreTimezone: isIgnoreTimezone,
         data: JSON.parse(data),
         pageURL: this._pageURL,
         manifestURL: this._manifestURL }
     );
     return request;
   },
   remove: function remove(aId) {
     debug("remove()");
     this._cpmm.sendAsyncMessage(
       "AlarmsManager:Remove",
       { id: aId, manifestURL: this._manifestURL }
     );
   },
   getAll: function getAll() {
     debug("getAll()");
     let request = this.createRequest();
     this._cpmm.sendAsyncMessage(
       "AlarmsManager:GetAll",
       { requestId: this.getRequestId(request), manifestURL: this._manifestURL }
     );
     return request;
   },
   receiveMessage: function receiveMessage(aMessage) {
     debug("receiveMessage(): " + aMessage.name);
     let json = aMessage.json;
     let request = this.getRequest(json.requestId);
     if (!request) {
       debug("No request stored! " + json.requestId);
       return;
     }
     switch (aMessage.name) {
       case "AlarmsManager:Add:Return:OK":
         Services.DOMRequest.fireSuccess(request, json.id);
         break;
       case "AlarmsManager:GetAll:Return:OK":
         // We don't need to expose everything to the web content.
         let alarms = [];
         json.alarms.forEach(function trimAlarmInfo(aAlarm) {
           let alarm = { "id":              aAlarm.id,
                         "date":            aAlarm.date,
                         "respectTimezone": aAlarm.ignoreTimezone ?
                                              "ignoreTimezone" : "honorTimezone",
                         "data":            aAlarm.data };
           alarms.push(alarm);
         });
         Services.DOMRequest.fireSuccess(request,
                                         Cu.cloneInto(alarms, this._window));
         break;
       case "AlarmsManager:Add:Return:KO":
         Services.DOMRequest.fireError(request, json.errorMsg);
         break;
       case "AlarmsManager:GetAll:Return:KO":
         Services.DOMRequest.fireError(request, json.errorMsg);
         break;
       default:
         debug("Wrong message: " + aMessage.name);
         break;
     }
     this.removeRequest(json.requestId);
    },
   // nsIDOMGlobalPropertyInitializer implementation
   init: function init(aWindow) {
     debug("init()");
     // Set navigator.mozAlarms to null.
     if (!Services.prefs.getBoolPref("dom.mozAlarms.enabled")) {
       return null;
     }
     // Only pages with perm set can use the alarms.
     let principal = aWindow.document.nodePrincipal;
     let perm =
       Services.perms.testExactPermissionFromPrincipal(principal, "alarms");
     if (perm != Ci.nsIPermissionManager.ALLOW_ACTION) {
       return null;
     }
     // SystemPrincipal documents do not have any origin.
     // Reject them for now.
     if (!principal.URI) {
       return null;
     }
     this._cpmm = Cc["@mozilla.org/childprocessmessagemanager;1"]
                    .getService(Ci.nsISyncMessageSender);
     // Add the valid messages to be listened.
     this.initDOMRequestHelper(aWindow, ["AlarmsManager:Add:Return:OK",
                                         "AlarmsManager:Add:Return:KO",
                                         "AlarmsManager:GetAll:Return:OK",
                                         "AlarmsManager:GetAll:Return:KO"]);
     // Get the manifest URL if this is an installed app
     let appsService = Cc["@mozilla.org/AppsService;1"]
                         .getService(Ci.nsIAppsService);
     this._pageURL = principal.URI.spec;
     this._manifestURL = appsService.getManifestURLByLocalId(principal.appId);
     this._window = aWindow;
   },
   // Called from DOMRequestIpcHelper.
   uninit: function uninit() {
     debug("uninit()");
   },
 }
 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AlarmsManager])